EP 2949642 B1 20171018 - METHOD FOR PRODUCING 3,5-DIMETHYLDODECANOIC ACID; AND 4-CARBOXY-3,5-DIMETHYL-3,5-DODECADIENOIC ACID
Title (en)
METHOD FOR PRODUCING 3,5-DIMETHYLDODECANOIC ACID; AND 4-CARBOXY-3,5-DIMETHYL-3,5-DODECADIENOIC ACID
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 3,5-DIMETHYLDODECANSÄURE UND 4-CARBOXY-3,5-DIMETHYL-3,5-DODECANSÄURE
Title (fr)
PROCÉDÉ DE PRODUCTION D'ACIDE 3,5-DIMÉTHYLEDODÉCANOÏQUE ET D'ACIDE 4-CARBOXY-3,5-DIMÉTHYLE-3,5-DODÉCANOÏQUE
Publication
Application
Priority
JP 2014109166 A 20140527
Abstract (en)
[origin: EP2949642A1] Provided are a short process for simply and efficiently producing 3,5-dimethyldodecanoic acid, which is an active ingredient of the pheromone of California prionus, and 4-carboxy-3,5-dimethyl-3,5-dodecadienoic acid which is an intermediate useful for producing 3,5-dimethyldodecanoic acid. More specifically, provided is a method for producing 3,5-dimethyldodecanoic acid, comprising the steps of subjecting 3-methyl-2-pentene-1,5-diacid diester (1) and 2-nonanone (2) to a condensation reaction and subsequent hydrolysis into 4-carboxy-3,5-dimethyl-3,5-dodecadienoic acid (3); decarboxylating or decarboxylating and hydrolyzing the 4-carboxy-3,5-dimethyl-3,5-dodecadienoic acid (3) into 3,5-dimethyl-2,4-dodecadienoic acid (4); and hydrogenating the 3,5-dimethyl-2,4-dodecadienoic acid (4) into 3,5-dimethyldodecanoic acid (5), as shown in the following scheme:
IPC 8 full level
C07C 67/343 (2006.01); C07C 51/09 (2006.01); C07C 51/36 (2006.01); C07C 51/38 (2006.01); C07C 53/126 (2006.01); C07C 57/03 (2006.01); C07C 57/13 (2006.01)
CPC (source: CN EP US)
C07C 51/09 (2013.01 - CN EP US); C07C 51/36 (2013.01 - CN EP US); C07C 51/373 (2013.01 - US); C07C 51/38 (2013.01 - CN EP US); C07C 57/13 (2013.01 - CN EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2949642 A1 20151202; EP 2949642 B1 20171018; CN 105294422 A 20160203; CN 105294422 B 20190329; JP 2015224208 A 20151214; JP 6162645 B2 20170712; US 2015344395 A1 20151203; US 9278899 B2 20160308
DOCDB simple family (application)
EP 15168196 A 20150519; CN 201510276302 A 20150526; JP 2014109166 A 20140527; US 201514713582 A 20150515